Coal breaker



wee. 18A, w23.. www@ F. PARDEE COAL BREAKER Original Filed Aug. 1l. 1921 4 :f NEVE-,wy 70 @l I l INVENTOR. 73m /wr @5055.

A TTORNEY.

Patented Dec. 18, 1923.

Cees Ramses..

Original application filed: August 11 1.921, Serial No. 421,383; Qi'vilded, and this( application filed- March. le,` 1%.22- Serial Ii@- .zl

To dill: freitag/rt t may. concern.'

Be it known thatgl, FnaNK Patrona, a citi zen ofthe United. States, and a resident Vof Hazleton,y l?ennsylvania7 have invented certain new andV useful improvements in Coal Breakers, of which the following isa specifi! cation.

This. applicaties isa division, 0f my 1961161- ing application ASerial Number 491,389 filed August 11, 19,21, and relatesto coal brea'lr` ersv and partic/,lily to theV construct-ion of the` cutting 'rolls lthereof. U d

ODG embodiment of the invention is illustrated in the accompanying drawingsin Which- Fiel is a Section. thfeiigh e. @al breaker Showing 011e of, the Quttinsrolls @mistreated eceoilhsft@ the rreSentiIive/nten;

F'g. Slis a Section. '01,1 the. line 0f Fg- 1 illustrating. in. daaly one weer m11. Semblys,

detached froml the coal. breaker;

` Figlifisfa detail of a locking collar.

Fisiisa hiesigen-tari. Plrshewes the Cooperating rolle- Refefrins @the dsawnss the walbreaker, includes eran; of Qppvsed. slitting 119.118 A and `B' arranged to break Vor 'out theA 'lumps of @oai fai iheretaby any suitable feeding device." The feedingV device employed will preferably be a rotary spiral drum such as disclosed in the application above referred to. This is not shown nor will it be further described, as the particular feeding arrangement forms no part of the present invention.

The cutter roll A is carried on a shaft 10 mounted in bearings 11 and 12'secured toA bed-plates 13 and V11 which are carried on timbers 15 and 16. The cutter roll is composed of a plurality of discs 17 havingxcut away portions 18 forming hook-like teeth 19 the ends of which Vare bevelled 'at 2O at an angle to a radial line so as to form a comparatively sharp cutting edge 20a at the outer end, which extends in a direction substantially parallel to the axis of the disc. The discs 17 are preferably made in a plurality of sections so that in the event of one or more of the teeth 19 being broken, a section can readily be removed and replaced by a new one. As illustrated in Fig. 3 the disc comprises two half sections 17 a and 171?, each iS. detail, of SectionalI cutter. T0117.

formed with a` hub 21,. the sections abutting along the line 22. Located'peipelldcularly to the liiie'z'fkeys V23v are securedV in "t'lie,

hubs= y2,1, which lrfeys 'fi-t'l inA suitable' lreyy seats cut in the lshaft H10.'V Locking-rings @fina-*re provided having internal" diameters of; vvsuch sizeas to permitkthem` to be snugly fitted over the., hubs 2.1. @,ftlie dises! Thesevsral" discs 17 are arranged alongside one another einer enaiQf-thsfshaa aioiiafesisfmijnaably securedby means ofa s'etsiiew' 29.` 5 'As tlius constructedit will be cleargftliat` in order i0 bassissima of. afgani: discv itis merely necessary toy'reinov efthe tie/ 1oclts V25 andflosfenthe set "screw '29 and Slip 'the @eine seaman-'y on theehuis and" slide, the discs 17 along the sha-ft a sufficient distance to permit therings 221i() belslipped oii' of the hubs 21 off the brken disc. new section )can be Uvinserted` 'andf'thf parts dassernbled'4 "in reverse order?v to thaty Habove stated as will be understood.

From the foregoing it is clear that in order to replace the disc it is not necessary to remove the shaft 1() from its bearings 11 and 12. Yielding fingers F, and Stripper fingers 88 and 89, to be hereinafter described7 are located between the discs in some instances and at the time of replacing broken discs, it is of course necessary to remove any of these fingers F which interfere with the lateral movement of the discs. These parts, however, are comparatively light and are easily disconnected, and it is a much simpler operation to eifect their removal than it would be t0 remove an entire heavy cutting roll having a great numbei' of cutter discs mounted thereon.

Located opposite the cutter roll A is a co-operating roll B which comprises a plurality of circular discs 30 bevelled at 81 to form a comparatively sharp circular cutting edge 30'. These discs may also be formed in Sections the saine the toothed discs illustrated in Fig. 3 and held together by similar locking rings 2A as above de scribed. Y

ln the drawings, however, they are shown as being formed of one piece, and in practice will usually be built in that way as the circular discs are not as liable to be broken as are the toothed discs above described. The discs 30 are arranged alongside of one another on a shaft 32 carried in bearings 33 mounted on the above mentioned base plates 13 and la. ,The bearings 33 each have a Vjournal 35slidably mounted therein to permit adjustment of the position of the shaft 32 with relation to the shaft 10, a suitable mzljusting nut 36 vbeing provided on ya bolt age merely by remo-ving the bolts 25 and slipping the discs V17 longitudinallyv on the shaft l0. This, willpermit the locking ring 24 on any broken dise to be slipped off of the hub portions 2l to free any broken sectionyor sections of` said discs. A new section`V can similarly be inserted and the part-s reassembled. This arrangement permits repairs tobe made in breaker rolls in a much quicker and simpler manner than is possible with breaker rolls v formerly used. While I have shown each disc 17 composed of only two separable sections it is to be understood if desired each disc may be made up of any number of sections depending on thediameter of the roll and also to some extent upon the class of material to be handled by the breaker.

While l have described with great particular-ity the details of the embodiment of the inventionherein illustrated, it is not vto be construed that am limited thereto as changes in arrangement and substitution of equivalents may be made without departpended claims.

That l claim is: Y

l. In an apparatus of the class described a cutting roll comprising a number of discs arranged alongside each other on a shaft,

.each disc being formed of Vseparable sections each having an integral Vhub formed thereon and rings arranged to lit over said hubs to ing from the invention as defined inV the. api hold the sections together, the hubs of the Y adjacent discs abutting one another to vspace the discs. Y

2. ln an apparatus of theiclass describedv a cutting roll vcomprising a numberV of discs arranged alongside each other on a shaft, each disc being formed in separable sections and rings arranged to litover said hubs to hold the sections together, the hubs of the each section having a hub formed thereon Y adjacent discs abutting one another to space the discs, a supporting shaft to which the vhubs are keyed and tie rods passing through the several discs at points beyond said hubs and rings to clamp them to each other,'the discs being so Varranged o-n the shaft that by disconnectingthe tie rods and moving the` discs laterally, said rings can be slipped olf of the hubs to permit sections of any of the discs to be removed and replaced'by a new section in the event of breakage.

In witness whereof, 'I have hereunto signed my name.V

FRANK PARDEE. 

